Patents by Inventor Saining Ren

Saining Ren has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Publication number: 20200321809
    Abstract: A wireless power system has a wireless power transmitting device and a wireless power receiving device. The wireless power transmitting device may be a wireless charging mat or other device with coils for transmitting wireless power signals. The wireless power receiving device may be a cellular telephone or other device with coils for receiving the transmitted wireless power signals. The wireless power receiving device has adjustable rectifier circuitry coupled to a pair of coils. The pair of coils is coupled in series at a node. A transistor is coupled between ground and the node and is controlled by control circuitry. The state of the transistor can be changed to place the adjustable rectifier circuitry in either a first mode of operation in which the adjustable rectifier circuitry forms a full-bridge rectifier or a second mode of operation in which the adjustable rectifier circuitry forms a pair of parallel half-bridge rectifiers.
    Type: Application
    Filed: July 8, 2019
    Publication date: October 8, 2020
    Inventors: Saining Ren, Ho Fai Leung
  • Patent number: 10784707
    Abstract: An inductive power receiving device configured to: supply power received with a power receiving coil to a load in a first mode; determine whether a converter voltage exceeds a threshold voltage; in response to the determining the converter voltage exceeds the threshold voltage after sending a charging mode request, switch to supplying power received with the power receiving coil to the load in a second mode; and in response to determining the converter voltage coil exceeds the threshold voltage before sending the charging mode request is sent, prevent at least a portion of the power received with the power receiving coil from reaching the load. An inductive power transmitting device configured to provide an alternating current voltage to a power transmitting coil and gradually increase the voltage after receiving a charging mode request and stop gradually increasing the voltage once an inductive power receiving device changes modes.
    Type: Grant
    Filed: September 20, 2018
    Date of Patent: September 22, 2020
    Assignee: Apple Inc.
    Inventors: Ron Rafer Floresca, Saining Ren, Michael Scott Eckert, Daniel Lorenz Huber, Selestino Langi Rodan, Lawrence Bernardo dela Cruz
  • Patent number: 10608470
    Abstract: An inductive power transfer receiver is provided including a receiving coil (13) in series with a capacitor (14), a voltage multiplier (15) for providing a DC output, and a power control switch (18) controlled by a controller (19) for regulating the power supplied to a load. An inductive power transfer receiver is provided including a receiving coil in series with a capacitor, a charge pump for providing a DC output, and a power control switch controlled by a controller for regulating the power supplied to a load. A method of power flow control in an inductive power transfer circuit having a power control switch is also provided. The method includes detecting two operational transitions in the circuit and determining a reference timing bases on which operational transition is detected earliest within a detection window. The reference timing is used to developing a signal for controlling the power control switch.
    Type: Grant
    Filed: October 29, 2013
    Date of Patent: March 31, 2020
    Assignee: Apple Inc.
    Inventors: Saining Ren, Lawrence Bernardo Dela Cruz, Daniel Robertson
  • Patent number: 10593468
    Abstract: An inductive power transfer assembly comprising a magnetic core having a base portion, a first limb, and a second limb, wherein the first limb and the second limb extend, in a direction, from a surface of the base portion a first power transfer coil and a second power transfer coil, wherein the first power transfer coil is wound about the first limb, and wherein the second power transfer coil is wound about the second limb; and inverter circuitry connected to the first power transfer coil and the second power transfer coil, wherein the inverter circuitry, during operation, causes the first power transfer coil and the second power transfer coil to generate flux having opposing polarity.
    Type: Grant
    Filed: September 18, 2018
    Date of Patent: March 17, 2020
    Assignee: Apple Inc.
    Inventors: Liang Chen, Saining Ren
  • Publication number: 20190341797
    Abstract: An inductive power receiving device configured to: supply power received with a power receiving coil to a load in a first mode; determine whether a converter voltage exceeds a threshold voltage; in response to the determining the converter voltage exceeds the threshold voltage after sending a charging mode request, switch to supplying power received with the power receiving coil to the load in a second mode; and in response to determining the converter voltage coil exceeds the threshold voltage before sending the charging mode request is sent, prevent at least a portion of the power received with the power receiving coil from reaching the load. An inductive power transmitting device configured to provide an alternating current voltage to a power transmitting coil and gradually increase the voltage after receiving a charging mode request and stop gradually increasing the voltage once an inductive power receiving device changes modes.
    Type: Application
    Filed: September 20, 2018
    Publication date: November 7, 2019
    Inventors: Ron Rafer Floresca, Saining Ren, Michael Scott Eckert, Daniel Lorenz Huber, Selestino Langi Rodan, Lawrence Bernardo dela Cruz
  • Patent number: 10461543
    Abstract: A receiver coil assembly for a wirelessly rechargeable battery including first and second transverse coils and a third coil encompassing the first and second coils. The receiver coil may be employed in a power receiver of a wirelessly rechargeable battery. Also disclosed is a wirelessly rechargeable battery having a power receiver demountable from an electrochemical cell.
    Type: Grant
    Filed: August 21, 2018
    Date of Patent: October 29, 2019
    Assignee: Apple Inc.
    Inventors: Hao Li, Saining Ren, Aijun Qin
  • Publication number: 20190311848
    Abstract: An inductive power transfer assembly comprising a magnetic core having a base portion, a first limb, and a second limb, wherein the first limb and the second limb extend, in a direction, from a surface of the base portion a first power transfer coil and a second power transfer coil, wherein the first power transfer coil is wound about the first limb, and wherein the second power transfer coil is wound about the second limb; and inverter circuitry connected to the first power transfer coil and the second power transfer coil, wherein the inverter circuitry, during operation, causes the first power transfer coil and the second power transfer coil to generate flux having opposing polarity.
    Type: Application
    Filed: September 18, 2018
    Publication date: October 10, 2019
    Inventors: Liang Chen, Saining Ren
  • Patent number: 10340705
    Abstract: A receiver coil assembly for a wirelessly rechargeable battery including first and second transverse coils and a third coil encompassing the first and second coils. The receiver coil may be employed in a power receiver of a wirelessly rechargeable battery. Also disclosed is a wirelessly rechargeable battery having a power receiver demountable from an electrochemical cell.
    Type: Grant
    Filed: August 8, 2017
    Date of Patent: July 2, 2019
    Assignee: Apple Inc.
    Inventors: Hao Li, Saining Ren, Aijun Qin
  • Publication number: 20190097472
    Abstract: A powered joint having a first joint component and second joint component in which the first joint component has multiple degrees of rotational freedom with respect to the second joint component, the powered joint including one or more power transmission coils associated with the first component; a plurality of power receiving coils associated with the second component; a sensor which determines the orientation of the second component with respect to the first component; and a control circuit for selectively connecting one of the plurality of power receiving coils to a power receiving circuit based on information received from the sensor.
    Type: Application
    Filed: November 27, 2018
    Publication date: March 28, 2019
    Inventors: Fady Mishriki, Lawrence Bernardo dela Cruz, Daniel James Robertson, John Kinnear Terry, Saining Ren
  • Publication number: 20180358815
    Abstract: A receiver coil assembly for a wirelessly rechargeable battery including first and second transverse coils and a third coil encompassing the first and second coils. The receiver coil may be employed in a power receiver of a wirelessly rechargeable battery. Also disclosed is a wirelessly rechargeable battery having a power receiver demountable from an electrochemical cell.
    Type: Application
    Filed: August 21, 2018
    Publication date: December 13, 2018
    Inventors: Hao Li, Saining Ren, Aijun Qin
  • Publication number: 20180337549
    Abstract: A wireless power transmitting device transmits wireless power signals to a wireless power receiving device using an output circuit that includes a wireless power transmitting coil. Measurement circuitry is coupled to the output circuit to help determine whether the wireless power receiving device is present and ready to accept transmission of wireless power. Oscillator circuitry for supplying signals to the output circuitry while making measurements with the measurement circuitry is coupled to the output circuit using an impedance injection network. The impedance injection network includes an inductor and a resistor coupled in series. Control circuitry opens a transistor in the output circuit when making measurements with the measurement circuitry and closes the transistor when transmitting the wireless power signals.
    Type: Application
    Filed: May 16, 2018
    Publication date: November 22, 2018
    Inventors: Liang Chen, Andrew Gray, Arunim Kumar, Zachary Strachan Harris, Antoin J. Russell, Bharat K. Patel, Saining Ren, Jerald Polestico Guillermo, Ron Rafer Floresca
  • Publication number: 20180219415
    Abstract: An inductive power transmitter 2 comprising: a controllable DC voltage source 5; a DC-AC converter 6 that receives a DC power supply from the controllable DC voltage source 5 and generates an AC output waveform to drive a transmitter coil 7 of an inductive power transfer system 1; a current sensor 9 for measuring the current supplied by the controllable DC voltage source 5 to the DC-AC converter 6; and a controller 8 that adjusts the output voltage of the DC voltage source 5 based on the current measured by the current sensor 9.
    Type: Application
    Filed: December 16, 2015
    Publication date: August 2, 2018
    Inventor: Saining REN
  • Patent number: 10038389
    Abstract: A method for controlling a converter including a resonant circuit, where the converter is controlled such that control switches are switched into a first state at the occurrence of an event that is related to a dependent variable of the converter and are switched into a second state at the occurrence of an event that is not related to a dependent variable of the converter, and the method may be employed in a converter or an inductive power transfer transmitter.
    Type: Grant
    Filed: April 4, 2017
    Date of Patent: July 31, 2018
    Assignee: Apple Inc.
    Inventors: Daniel James Robertson, Saining Ren, Eugenio Sia Lecias
  • Patent number: 10020687
    Abstract: An inductive power transfer device including: a resonant circuit, having a power transfer coil and a power transfer capacitor; a coupling coil, magnetically-coupled to the power transfer coil; a variable impedance; and a controller configured to determine the impedance value of the variable impedance based on predetermined criteria including: substantially regulating power provided to a load; tuning the resonant circuit resonant frequency substantially to a predetermined frequency; adjusting a frequency of a magnetic field associated with the power transfer coil; and/or adjusting an impedance reflected by the power transfer coil to a corresponding coupled power transfer coil.
    Type: Grant
    Filed: January 22, 2015
    Date of Patent: July 10, 2018
    Assignee: Apple Inc.
    Inventors: Eugenio Jr. Sia Lecias, Junbo Zeng, Saining Ren, Daniel James Robertson, Michael Nasa, Ron Rafer Floresca, Arunim Kumar, Ali Abdolkhani
  • Publication number: 20180175671
    Abstract: An inductive power transfer (IPT) system may include an inductive power transmitter having at least one power transmitting coil that generates an IPT field and an IPT director unit over the inductive power transmitter. The IPT director unit may include a low reluctance element such as a magnetic core configured to direct the IPT field from the inductive power transmitter to an inductive power receiver held in place over the IPT director unit (e.g., by a housing of the IPT director unit). While the IPT director unit directs the IPT field from the inductive power transmitter to the inductive power receiver, a mean direction and density of the IPT field entering the low reluctance element from the inductive power transmitter may be different from the mean direction and density of the IPT field exiting the low reluctance element towards the inductive power receiver.
    Type: Application
    Filed: December 13, 2017
    Publication date: June 21, 2018
    Inventor: Saining Ren
  • Patent number: 9953762
    Abstract: The invention relates to a contactless connector (100), a system including the contactless connector (100) and a corresponding mating connector (200), and a manufacturing method for the contactless connector. In order to enable the contactless connector (100) to transmit/receive power to/from the corresponding mating connector (200), the invention suggest providing at the contactless connector an inner ferrite element (102) and an inductive coupling element (110) arranged to at least partially surround the inner ferrite element. An outer ferrite element (107) of the contactless connector is arranged to at least partially surround the inductive coupling element (110), wherein a front end (108) of the outer ferrite element (107) facing the mating (101) end of the contactless connector is recessed in an axial direction of the contactless connector with respect to a front end (103) of the inner ferrite element (102) facing the mating end.
    Type: Grant
    Filed: June 10, 2013
    Date of Patent: April 24, 2018
    Assignee: TE Connectivity Nederland B.V.
    Inventors: Wijnand Van Gils, Peter Dirk Jaeger, Gied Habraken, Guus Mertens, Saining Ren, Lawrence Bernardo dela Cruz, Rex Pius Huang, Ali Abdolkhani
  • Publication number: 20180034327
    Abstract: A wireless power transfer system comprising: a wireless power transfer transmitter having at least one power transmitting coil aligned in a first plane; a wireless power transfer receiver having at least one power receiving coil aligned in a second plane, the first and second planes being non-parallel to one another; and a wireless power transfer adaptor for adapting the power transferred in the first plane to power transferred in the second plane.
    Type: Application
    Filed: March 4, 2016
    Publication date: February 1, 2018
    Applicant: PowerbyProxi Limited
    Inventors: Saining REN, Zachary Strachan HARRIS, Burt John OLIVER
  • Patent number: 9859051
    Abstract: A magnetically permeable core for use in wireless power transfer systems. The core includes a base with first and second portions that extend away from the base. The first portion extends further from the base than the second portion in order to maintain an effective flux linkage throughout a range of relative displacement of a receiving core from a transmitting core. Transmitters and/or receivers for use in wireless power transfer systems may include the magnetically permeable core and windings.
    Type: Grant
    Filed: June 11, 2013
    Date of Patent: January 2, 2018
    Assignee: PowerbyProxi Limited
    Inventors: Saining Ren, Lawerence Bernardo Dela Cruz, Rex Pius Huang, Ali Abdolkhani
  • Publication number: 20170373508
    Abstract: A receiver coil assembly for a wirelessly rechargeable battery including first and second transverse coils and a third coil encompassing the first and second coils. The receiver coil may be employed in a power receiver of a wirelessly rechargeable battery. Also disclosed is a wirelessly rechargeable battery having a power receiver demountable from an electrochemical cell.
    Type: Application
    Filed: August 8, 2017
    Publication date: December 28, 2017
    Applicant: PowerbyProxi Limited
    Inventors: Hao LI, Saining REN, Aijun QIN
  • Publication number: 20170358954
    Abstract: An inductive power receiver 3 including at least two switches S1, S2 connected across a resonant circuit 802, the resonant circuit including an inductance and a capacitance, wherein a first switch S1 of the at least two switches is configured to switch into a first state based on a first event dependent on a receiver variable; and the first switch is configured to switch to a second state based on a second event independent of a receiver variable.
    Type: Application
    Filed: October 21, 2015
    Publication date: December 14, 2017
    Applicant: PowerbyProxi Limited
    Inventor: Saining REN